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1.44. The van der Waals constant b can be used to estimate molecular sizes, assuming the molecules are shaped like spheres: 1. Convert b to units of m³/mol, using the fact that 1 m³ = 1000 L. 2. Divide by Avogadro's number to get the individual molecular contribution to b. 3. Use V = 4/3 Tr³ to estimate the radius of the molecule. Using these steps, estimate the sizes of (a) He (b) H₂O (c) C₂H₂.

1.44. The van der Waals constant b can be used to estimate molecular sizes, assuming the molecules are shaped like spheres: 1. Convert b to units of m³/mol, using the fact that 1 m³ = 1000 L. 2. Divide by Avogadro's number to get the individual molecular contribution to b. 3. Use V = 4/3 Tr³ to estimate the radius of the molecule. Using these steps, estimate the sizes of (a) He (b) H₂O (c) C₂H₂.

Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter5: Gases
Section: Chapter Questions
Problem 27QAP: The gas in the discharge cell of a laser contains (in mole percent) 11% CO2, 5.3% N2, and 84% He....
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1.44. The van der Waals constant b can be used to estimate molecular sizes, assuming the molecules are shaped like spheres: 1. Convert b to units of m³/mol, using the fact that 1 m³ = 1000 L. 2. Divide by Avogadro's number to get the individual molecular contribution to b. 3. Use V = 4/3 πr³ to estimate the radius of the molecule. Using these steps, estimate the sizes of (a) He (b) H₂O (c) C₂H6-
Transcribed Image Text:1.44. The van der Waals constant b can be used to estimate molecular sizes, assuming the molecules are shaped like spheres: 1. Convert b to units of m³/mol, using the fact that 1 m³ = 1000 L. 2. Divide by Avogadro's number to get the individual molecular contribution to b. 3. Use V = 4/3 πr³ to estimate the radius of the molecule. Using these steps, estimate the sizes of (a) He (b) H₂O (c) C₂H6-
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